The 19-year-old actress and model was seen walking the red carpet for a screening of L’Homme Fidele (aka A Faithful Man) at the Mk2 Bibliotheque on Monday evening (December 17) in Paris, France.

The movie is about a couple’s relationship that becomes complicated when she leaves him for his best friend, and returns after he dies. Joining Lily-Rose at the premiere were her co-stars Laetitia Casta and Louis Garrel.

The movie does not yet have a US release date, but will hit theaters in France on December 26.